Dispositif de fixation et de réglage invisible applicable notamment aux bracelets-montres

申请公布号：FR935435(A)

申请号：FRD935435

申请日期：1946.10.29

申请公布日期：1948.06.18

发明人：ANTOINE MAURICE;LAURIERS JACQUES GUERARD DES

分类号：G04B37/14

主分类号：G04B37/14

SHAFT VACUUM SEAL

APPARATUS FOR SECURING ROPE END

RECIPROCATION-ACTION PNEUMATIC DRIVE

CENTRIFUGAL COMPRESSOR IMPELLER

METHOD OF DIAGNOSIS OF TECHNICAL CONDITION OF PLUNGER PUMP PUMPING ASSEMBLY

APPARATUS FOR CLOSING CARBURETTOR AIR DUCT

ELECTROMAGNETICALLY CONTROLLED PNEUMOHYDRAULIC DISTRIBUTOR

CENTRIFUGAL SUPERCHARGER

WELL CEMENTING METHOD

DEVICE FOR RELEASING A PIPE STRING STUCK IN A WELL

DEVICE FOR ELIMINATING STICKING OF PIPE STRING IN WELL

CASING CENTERING DEVICE

ABOVE-BIT LUBRICATOR

HOLE-BOTTOM MOTOR

ARRANGEMENT FOR DELIVERING CARGO INTO MINE WORKINGS

EXPLOSION-PROOF MINE PARTITION

ANCHORAGE ROOF SUPPORT

HYDRAULIC PROP OF MINE ROOF SUPPORT

DEVICE FOR EXCAVATING A PEAT DEPOSIT

HYDRO-PERCUSSIVE EARTH-DRILLING MACHINE