|
GB493821A
|
|
Priming and controlling centrifugal pumps
|
|
GB437463A
|
|
Improvements in and relating to gate valves
|
|
GB351226A
|
|
Packing means for reciprocating rods
|
|
GB344123A
|
|
Stuffing box packing
|
|
GB345685A
|
|
Packing ring for piston rods and the like
|
|
US1819559A
|
|
Metallic packing for reciprocating shafts
|
|
US1776911A
|
|
Packing and lubricating rods and shafts
|
|
GB273993A
|
|
Improved metallic packing for stuffing-boxes
|
|
GB290751A
|
|
Packing and lubricating rods and shafts
|
|
CA326694A
|
|
Packing means for reciprocating rods
|
|
CA321605A
|
|
Packing ring for piston rods
|
|
CA283238A
|
|
Packing and lubricating rod
|
|
CA315862A
|
|
Metallic packing ring
|
