FR444041A - Perfectionnements dans la fabrication des manchons employés dans les coussinets à billes ou galets pour essieux, arbres et analogues
- Google Patents
Perfectionnements dans la fabrication des manchons employés dans les coussinets à billes ou galets pour essieux, arbres et analogues
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B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
B21K1/00—Making machine elements
B21K1/04—Making machine elements ball-races or sliding bearing races
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FR444041D1912-05-201912-05-20Perfectionnements dans la fabrication des manchons employés dans les coussinets à billes ou galets pour essieux, arbres et analogues
ExpiredFR444041A
(fr)