Canada - 16 Slide Rule Patents

Work in Progress - Clickable Thumbnails to PDF files will be added first followed by descriptions

1944 - 1952


	CA457012A
	CA458817A
	CA465387
	CA481293A
	CA483693A

1952 -1958


	CA484510A
	CA489176A
	CA515949A
	CA531002A
	CA532587A

1958 - Present


	CA565467A
	CA644977A
	CA671991A
	CA693696A
	CA1083545A1
	CA2156036A1

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