_:Bf472bf7ba6cdac2767647736afb0f458 . "Friedrich" . "Rathgen" . "Friedrich Rathgen" . . . . "Rathgen, Friedrich" . . _:Bf472bf7ba6cdac2767647736afb0f458 . _:Bf472bf7ba6cdac2767647736afb0f458 . _:Bf472bf7ba6cdac2767647736afb0f458 "2023-05-21"^^ . _:Bf472bf7ba6cdac2767647736afb0f458 . _:Bf472bf7ba6cdac2767647736afb0f458 . _:Bf472bf7ba6cdac2767647736afb0f458 "074880500" . _:Bf472bf7ba6cdac2767647736afb0f458 . _:Bf472bf7ba6cdac2767647736afb0f458 . _:Bf472bf7ba6cdac2767647736afb0f458 .