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Patents > Office: US & Applicant is inventor: No & Filing date: 1911

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USPC 244/80 (7) · USPC 244/100R (4) · None (2) · USPC 244/13 (2) · USPC 244/93 (2) · USPC 244/231 (2) · USPC 244/76R (2) · USPC 244/127 (2)
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