Here is two Python Tags that toggles object’s visibility by given frames.
This Python Tag toggles it’s object’s visibility. You can input individual frame numbers or frame ranges. Use a comma to separate different selections. Frame numbers that you put in to the input field are “selected frames”. You can change operation what happens to selected frames or non-selected frames.
Toggle Visibility Controller
This one works like the previous one but instead controlling only one object, you can control multiple objects’ visibility. Add more items with “Add” button. You can add as many item as you want. “Remove” button removes always the last “Toggle Visibility” group.