Drilldown: Patents
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Patents > Grant date:
May 22, 1919
& National tech categories:
None
& Citations from after 1930:
None
Use the filters below to narrow your results.
None (1) ·
1329318 (1) ·
1338618 (1) ·
162617 (1) ·
162717 (1) ·
180617 (1) ·
1963718 (1) ·
2013818 (1) ·
201617 (1) ·
256917 (1) ·
329417 (1) ·
491109D (1)
CPC B64B1/40 (1) ·
CPC B64C1/064 (1) ·
CPC B64C1/065 (1) ·
CPC B64C13/00 (1) ·
CPC B64C2001/0063 (1) ·
CPC B64C2700/6256 (1) ·
CPC B64C3/18 (1) ·
CPC B64C3/185 (1) ·
CPC B64C3/187 (1) ·
CPC B64C3/385 (1) ·
CPC B64C35/00 (1) ·
CPC B64C35/001 (1) ·
CPC B64C35/003 (1) ·
CPC B64F2700/6261 (1) ·
CPC F41A19/05 (1) ·
CPC F41A19/12 (1)
Showing below up to 12 results in range #1 to #12.
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