Modifiche

| patents a [[safety]] pen with threaded bottom to be turned by screwing the cap (1909?)

| patents a [[safety]] pen with threaded bottom to be turned by screwing the cap (1909?)

| a breveté une [[safety]] avec une bas fileté pour engager le capuchon (1909?)}}

| a breveté une [[safety]] avec une bas fileté pour engager le capuchon (1909?)}}

{{VoceCronologia|Waterman|NULL|modifica

{{VoceCronologia|Waterman|NULL|modifica

| introduce la sua prima [[safety]], denominata ''Safety Filler''

| introduce la sua prima [[safety]], denominata ''Safety Filler''