新潟 51型強震計


記入日成分ToVrv
1968.05.16 S-N6.010.048
E-W6.010.048
U-D5.010.048
1976.12 検定 S-N5.110.077.5
E-W5.610.098.9
U-D4.910.057.5
1978.11 検定 S-N6.010.038
E-W6.210.038
U-D5.110.057