E - Fixed Constructions – 21 – B
Inventor
E - Fixed Constructions
21
B
Inventor
Country: United States Of America
Adjustable collet
Combination landing unit and seal assembly
Composite landing collar for cementing operation
Fluid filled drill pipe plug
Indicating dog sub for weight-set packers
Adjustable collet
Combination landing unit and seal assembly
Latch and retrieving assembly
Latching production seal assembly
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