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Patents > Year granted: 1917 & Granted: Yes & Number of claims: 3-4

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Inventors:
None (3) · Thomas Sopwith (3) · Joseph Allison Steinmetz (3) · Heinrich Bier (2) · Rumpler-Werke G.m.b.H. in Berlin-Johannisthal (2) · Everard Richard Calthrop (2)
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Applicant person:
None (4) · Joseph Allison Steinmetz (3) · Thomas Sopwith (3) · Heinrich Bier (2) · Everard Richard Calthrop (2)
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Tech fields:
None (9) · military (8) · airplane (6) · construction (6) · propellers (5) · projectile (4) · design (4) · connections (3) · stability (3)
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None (8)
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CPCs:
None (5) · CPC B64C3/00 (5) · CPC B64C2700/6235 (4) · CPC B64C17/00 (3) · CPC B64C11/006 (2) · CPC B64C2700/6274 (2) · CPC B64C23/005 (2) · CPC B64C13/00 (2) · CPC B64C3/18 (2)
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