1952
Estalished of Walter G. Rathmann Segmentklammerschrauben GmbH by Ing. Walter Gottlob Rathmann in Schwetzingen.

1956
The sgement-screw-clamps will be patented word wide.

1962
Moving of the company to Koblenz-Arenberg.

1965
Building of a large production hall and storage hall, in which the forging parts will be finish on modern machines. Also a 60 t tensile test machine, on which the TÜV Rheinland AG will proof the clamps.

1968
Starting on distributions wordwide of our clamps.

1971
Outstanding of our stock in a separate hall. At the same time the demounting of the production.

1977
Building of a third hall, only for test and proofing of clamps.

1980
Certified and acceptance as producer acc. W0/TRD100 by TÜV Rheinland AG.

1987
Enlargement of our delivery program of ASME material.

2002
Certified as material producer acc. 97/23/EG, by TÜV Rheinland AG for pressure vessel in cologne.

2010
Machinery is upgraded to the processing of "CNC" machines.

2011
- The company name changed to Walter G. Rathmann Segmentklammerschrauben GmbH & Co. KG.
- Mr. Petro Döhr take over the managing director.

2012
- Elongation of certificate of PED 97/23/EG for quality managing system of material producer.

2013
- Certification as known consignor according Regulation (EC) No 300/2008 (Registration number: DE/KC/00804-01/0118)