4. Geometrical instruments
  5. Straight-line light ray type
  6. Structurally installed

Charles R. Keller

Inventor

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Arrow guide and holder with cam-like action

Mechanical guns and projectors – Element – Projectile holder or carrier
Reexamination Certificate

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Bow sight

Geometrical instruments – Straight-line light ray type – Structurally installed
Patent

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Bow sight and method

Geometrical instruments – Straight-line light ray type – Structurally installed
Patent

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Profile ID: LFUS-PAI-P-589416

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