Modifiche

This section brings together all the other loading systems based on the mechanical compression of a rubber sac, but carried out by means of a mechanical system that does not refer directly to the lever principle, and therefore used as a legally conclusive alternative to the system introduced by [[Sheaffer]].

This section brings together all the other loading systems based on the mechanical compression of a rubber sac, but carried out by means of a mechanical system that does not refer directly to the lever principle, and therefore used as a legally conclusive alternative to the system introduced by [[Sheaffer]].

=== ''[[button filler]]'' ===

=== ''[[button filler]]'' ===

{{:button filler/en}}

{{:button filler/en}}

=== ''[[twist filler]]'' ===

=== ''[[twist filler]]'' ===