| Patent #: | 306423
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| Inventor: | Smith, Russell Rogers |
| Invention: | Apparatus for Freeing Oil Wells From Frozen Material |
| Location: | Calgary |
| Date: | 02/12/30 |
| Category: | Mining T&E; |
| | |
| Patent #: | 296952
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| Inventor: | Snowdon, Campbell Camilus |
| Invention: | Animal Trap |
| Location: | Calgary |
| Date: | 21/01/30 |
| Category: | Fishing & Trapping T&E; |
| Comments: | see Glenbow Archives b 1882, Quebec; came west 1901 with Canadian Oil Company; 1907 formed D.D. Snowdon Company, wholesale manufacturer, refiner and importer of oils; expanded from Vancouver to Toronto; d 1972; firm became Turbo Resources; records include patents |
| | |
| Patent #: | 303779
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| Inventor: | Stevens, Robert Herbert |
| Invention: | Apparatus for the Filtration of Radio Wave Signals |
| Location: | Edmonton |
| Date: | 09/09/30 |
| Category: | Sound Communication Equipment |
| | |
| Patent #: | 297036
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| Inventor: | Stevenson, Robert Edward |
| Invention: | Advertising Display Device |
| Location: | Alliance |
| Date: | 28/01/30 |
| Category: | Advertising Medium |
| | |
| Patent #: | 299509
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| Inventor: | Storms, Patrick |
| Invention: | Direction Indicator for Motor Vehicles |
| Location: | Bluffton |
| Date: | 22/04/30 |
| Category: | Land Transportation Accessory |
| | |
| Patent #: | 306703
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| Inventor: | Tetreault, Sylva |
| Invention: | Tractor Hitch Power Controller |
| Location: | St. Paul |
| Date: | 16/12/30 |
| Category: | Agricultural T&E; |
| | |
| Patent #: | 302960
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| Inventor: | Torance, William |
| Invention: | Grain Stooking Machine |
| Location: | Calgary |
| Date: | 12/08/30 |
| Category: | Agricultural T&E; |
| | |
| Patent #: | 303677
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| Inventor: | Trusts and Guarantee Company Limited, (assignee) |
| Invention: | Battery for Flashlights |
| Location: | Toronto, ON |
| Date: | 02/09/30 |
| Category: | Lighting Device |
| | |
| Patent #: | 300164
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| Inventor: | University of Alberta, Governors |
| Invention: | Process of Cracking and Distilling Petroleum |
| Location: | Edmonton |
| Date: | 13/05/30 |
| Category: | Mining T&E; |
| | |
| Patent #: | 304022
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| Inventor: | University of Alberta, Governors |
| Invention: | Process for the Liquefaction of Coal |
| Location: | Edmonton |
| Date: | 16/09/30 |
| Category: | Mining T&E; |
| | |
| Patent #: | 298798
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| Inventor: | Wade, Joseph |
| Invention: | Hollow Tile |
| Location: | Calgary |
| Date: | 01/04/30 |
| Category: | Building Fragment |
| | |
| Patent #: | 301840
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| Inventor: | Warner, Wellington Lyon |
| Invention: | Lubricating System |
| Location: | Calgary |
| Date: | 08/07/30 |
| Category: | Power Production T&E; |
| | |
Heritage Community Foundation Presentss
