DE933066C
1954-02-12
Dial gauge for hardness tester according to the Rockwell method with automatic adjustment to the zero point
DE1025171B
1952-03-20
Hardness testing device that works according to the depth difference measurement method and automatically controls the test sequence
DE896728C
1951-12-23
Hydraulic hardness tester with built-in microscope
DE847075C
1951-06-01
Hardness tester with objective lens on the loading lever
DE815555C
1950-03-07
Hardness tester to determine the number of hardness from the applied load
DE828770C
1949-03-25
Device for switching on one of several load levels determined by weights, especially for material testing machines
DE802770C
1949-03-25
Rigid writing mechanism for shredding machines
DE845424C
1948-12-18
Dial gauge for hardness testers according to the Rockwell method with automatic adjustment to an unchangeable zero point
DE760474C
1942-10-08
Device for the automatic continuous adjustment of the loading speed on hydraulically operating material testing machines
DE722064C
1940-10-29
A hardness tester working according to the preload method with a mechanically operating device for automatic zero setting of the dial gauge
DE757235C
1940-08-15
Optical hardness tester working according to the diameter and depth difference measuring method
DE756526C
1940-06-29
Preload tester with an electromagnetic device for the automatic zero setting of the dial gauge attached to the machine housing
DE732854C
1938-12-10
Hardness tester working according to the penetrant method and equipped with a movable microscope
