the slidable mass being a compressor piston

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Patents Grantslast 30 patents

Information Patent Grant
Device adapted for toy launcher projectile and toy gun
- Patent number 10,533,824
- Issue date Jan 14, 2020
- CHAP MEI PLASTIC TOYS MANUFACTORY LIMITED
- Hing Fung Simon Lam
- F41 - WEAPONS
Information Patent Grant
Gas spring assembly for an air gun
- Patent number 8,132,563
- Issue date Mar 13, 2012
- Thomas Gore
- F41 - WEAPONS
Information Patent Grant
Spring piston air weapon
- Patent number 4,870,945
- Issue date Oct 3, 1989
- Roy Hutchison
- F41 - WEAPONS
Information Patent Grant
2938513
- Patent number 2,938,513
- Issue date May 31, 1960
- F41 - WEAPONS