4. Typewriting machines
  5. Sheet or web
  6. Including friction-feed means

Arthur M. Maroth

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Counterbalanced mechanical speed-change mechanism

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Golf club swing indicator

Amusement devices: games – Surface projectile game; game element – Simulated game
Patent

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Swing force indicator for playing piece of sports equipment

Amusement devices: games – Surface projectile game; game element – Simulated game
Patent

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Transparent typewriter bail

Typewriting machines – Sheet or web – Including friction-feed means
Patent

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Profile ID: LFUS-PAI-P-1189789

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