CA 244

244 was the Canadian Patent Office's class for aeronautics – like UPSC 244 but different.

Links

• https://historicip.com/patents/Canadian/cpc/244.htm

Enclosing categories	Canadian patent classifications
Subcategories	CA 244/1, CA 244/2, CA 244/3, CA 244/24, CA 244/33, CA 244/35, CA 244/45, CA 244/46, CA 244/47, CA 244/53, CA 244/59, CA 244/76, CA 244/86, CA 244/89, CA 244/90, CA 244/91, CA 244/93, CA 244/110, CA 244/119, CA 244/120
Keywords	USPC 244
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